1
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Liu P, Ji Y, Wu H, Guo S. Selectively multilayered distribution of stereocomplex crystallite and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) ribbons to achieve highly ductile and strong poly(l-lactide) composites. Int J Biol Macromol 2023; 246:125543. [PMID: 37355068 DOI: 10.1016/j.ijbiomac.2023.125543] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/11/2023] [Accepted: 06/21/2023] [Indexed: 06/26/2023]
Abstract
Blending poly(l-lactide) (PLLA) with elastic polymers is an efficient way to obtain highly ductile materials (> 300 %), but it is accompanied by a significant reduction in strength. In this work, a special alternating multilayered composites with alternating stereocomplex crystallite (SC) (PLLA/poly(d-lactide) (PDLA) layer) and highly oriented Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) ribbons (PLLA/PHBV layer) is in situ constructed during laminated structuring process. Experimental results show that in situ formed PHBV ribbons are limitedly distributed in the thickness direction and align parallel to the layer interfaces. More interestingly, not only highly oriented shish crystals but also sparse lamellae of PLLA, which are arrested by SC, shish crystals, and PHBV ribbons, are in situ formed. Compared with sea-island structured composites prepared by traditional compression molding, the alternating multilayered composites show an increase in elongation at break from 8.7 % to 345.1 % and an increase in yield strength from 61.4 MPa to 73.2 MPa. During the tensile testing, the PLLA/PHBV layers firstly form micro-fibrils and micro-voids, driving the molecular chains of the PLLA/PDLA layer to respond in time to external forces through stress transfer of rich continuous layer interfaces. Since shear yielding and plastic deformation can easily penetrate the entire matrix, the alternating multilayered composites go a brittle-ductile transformation and the ductility is improved significantly. The increased strength of the alternating multilayered material is ascribed to the stiff shish crystals and SC. This work provides important guidance for the durable application of strong and ductile PLLA-based materials.
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Affiliation(s)
- Pengfei Liu
- The State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Yuan Ji
- The State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Hong Wu
- The State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu 610065, China.
| | - Shaoyun Guo
- The State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu 610065, China.
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2
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Ben Achour MA, Samuel C, Rguiti M, Barrau S, Courtois C, Lacrampe M. Evaluation of shear piezoelectric coefficients by a bimorph cantilever technique for extruded and oriented poly(
l
‐lactide) films. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mohamed Aymen Ben Achour
- INSA Hauts‐de‐France, CERAMATHS – Laboratoire de Matériaux Céramiques et de Mathématiques, Université Polytechnique Hauts‐de‐France Valenciennes France
| | - Cédric Samuel
- IMT Nord Europe, Institut Mines‐Télécom, Université de Lille, Centre for Materials and Processes Lille France
| | - Mohamed Rguiti
- INSA Hauts‐de‐France, CERAMATHS – Laboratoire de Matériaux Céramiques et de Mathématiques, Université Polytechnique Hauts‐de‐France Valenciennes France
| | - Sophie Barrau
- CNRS, INRAE, Centrale Lille, UMR 8207 ‐ UMET ‐ Unité Matériaux et Transformations, Université de Lille Lille France
| | - Christian Courtois
- INSA Hauts‐de‐France, CERAMATHS – Laboratoire de Matériaux Céramiques et de Mathématiques, Université Polytechnique Hauts‐de‐France Valenciennes France
| | - Marie‐France Lacrampe
- IMT Nord Europe, Institut Mines‐Télécom, Université de Lille, Centre for Materials and Processes Lille France
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3
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Makarewicz C, Safandowska M, Idczak R, Rozanski A. Plastic Deformation of Polypropylene Studied by Positron Annihilation Lifetime Spectroscopy. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Cezary Makarewicz
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, Lodz90-363, Poland
- The Bio-Med-Chem Doctoral School of the University of Lodz and Lodz Institutes of the Polish Academy of Sciences, Banacha 12/16, Lodz90-237, Poland
| | - Marta Safandowska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, Lodz90-363, Poland
| | - Rafał Idczak
- Institute of Experimental Physics, University of Wrocław, pl. Maksa Borna 9, Wroclaw50-204, Poland
| | - Artur Rozanski
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, Lodz90-363, Poland
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4
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Zhang J, Li JQ, Wei QY, Chen Y, Jia DZ, Lin H, Zhong GJ, Li ZM. Light weight, low dielectric constant, super-robust polylactide film based on stress-induced cavitation aided by crystallization. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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5
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Liu P, Chen J, Zhang Y, Li C, Wu H, Guo S. In-situ constructing highly oriented ductile poly(3-hydroxybutyrate-co-3-hydroxyvalerate) nanoribbons: Towards strong, ductile, and good heat-resistant polylactic-based composites. Int J Biol Macromol 2022; 216:213-224. [PMID: 35777516 DOI: 10.1016/j.ijbiomac.2022.06.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/15/2022] [Accepted: 06/25/2022] [Indexed: 11/30/2022]
Abstract
It remains a great challenge to manufacture polylactic (PLA) with high strength, ductility, and heat resistance simultaneously. Herein, PLA/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) nanoribboned composites, the highly oriented PHBV nanoribbons decorated by the PLA lamella, are successfully achieved through the multistage stretching extrusion (MSE) system. SEM confirms that in-situ highly oriented PHBV nanoribbons are achieved by biaxial-stretching field during the MSE process. Through investigating crystalline architecture of PLA/PHBV nanoribboned composites, it is found that the stiff shish and sparse lamellae of PLA are obtained under the coupling effect of PHBV nanoribbons and biaxial-stretching field. DMA reveals partial compatibility between PLA and PHBV. Interestingly, during tensile test, PHBV nanoribbons show high flexibility and synergistically facilitate the stretch of semi-rigid chains of PLA by an effective interfacial interaction. Consequently, even they both are extremely brittle, PLA/PHBV nanoribboned composites exhibit excellent strength (82.9 MPa) and ductility (186.7 %), compared with pure PLA (71.4 MPa and 12.3 %). Additionally, due to the promotion of the crystallization of PLA, PLA/PHBV nanoribboned composites show excellent heat resistance (E'140°C > 350 MPa). The nanoribboned composites are of immense significance, which provide significant guidance for the simultaneous enhancement of ductility and strength of polymer materials.
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Affiliation(s)
- Pengfei Liu
- The State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu, 610065, China
| | - Jing Chen
- The State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu, 610065, China
| | - Yang Zhang
- The State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu, 610065, China
| | - Chunhai Li
- The State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu, 610065, China.
| | - Hong Wu
- The State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu, 610065, China.
| | - Shaoyun Guo
- The State Key Laboratory of Polymer Materials Engineering, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Polymer Research Institute of Sichuan University, Chengdu, 610065, China
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6
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Kukhta NA, Luscombe CK. Gaining control over conjugated polymer morphology to improve the performance of organic electronics. Chem Commun (Camb) 2022; 58:6982-6997. [PMID: 35604084 DOI: 10.1039/d2cc01430k] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conjugated polymers (CPs) are widely used in various domains of organic electronics. However, the performance of organic electronic devices can be variable due to the lack of precise predictive control over the polymer microstructure. While the chemical structure of CPs is important, CP microstructure also plays an important role in determining the charge-transport, optical and mechanical properties suitable for a target device. Understanding the interplay between CP microstructure and the resulting properties, as well as predicting and targeting specific polymer morphologies, would allow current comprehension of organic electronic device performance to be improved and potentially enable more facile device optimization and fabrication. In this Feature Article, we highlight the importance of investigating CP microstructure, discuss previous developments in the field, and provide an overview of the key aspects of the CP microstructure-property relationship, carried out in our group over recent years.
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Affiliation(s)
- Nadzeya A Kukhta
- Materials Science and Engineering Department, University of Washington, Seattle, Washington 98195-2120, USA
| | - Christine K Luscombe
- pi-Conjugated Polymers Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, 904-0495, Japan.
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7
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Xie C, Xiao C, Jiang X, Liang S, Liu C, Zhang Z, Chen Q, Li W. Miscibility-Controlled Mechanical and Photovoltaic Properties in Double-Cable Conjugated Polymer/Insulating Polymer Composites. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c02111] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chengcheng Xie
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Chengyi Xiao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Xudong Jiang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Shijie Liang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Chunhui Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Zhou Zhang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Qiaomei Chen
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Weiwei Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P.R. China
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8
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Vozniak A, Bartczak Z. Deformation of Poly-l-lactid acid (PLLA) under Uniaxial Tension and Plane-Strain Compression. Polymers (Basel) 2021; 13:4432. [PMID: 34960984 PMCID: PMC8708863 DOI: 10.3390/polym13244432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/10/2021] [Accepted: 12/14/2021] [Indexed: 11/16/2022] Open
Abstract
The ability of PLLA, either amorphous or semicrystalline, to plastic deformation to large strain was investigated in a wide temperature range (Td = 70-140 °C). Active deformation mechanisms have been identified and compared for two different deformation modes-uniaxial drawing and plane-strain compression. The initially amorphous PLLA was capable of significant deformation in both tension and plane-strain compression. In contrast, the samples of crystallized PLLA were found brittle in tensile, whereas they proved to be ductile and capable of high-strain deformation when deformed in plane-strain compression. The main deformation mechanism identified in amorphous PLLA was the orientation of chains due to plastic flow, followed by strain-induced crystallization occurring at the true strain above e = 0.5. The oriented chains in amorphous phase were then transformed into oriented mesophase and/or oriented crystals. An upper temperature limit for mesophase formation was found below Td = 90 °C. The amount of mesophase formed in this process did not exceed 5 wt.%. An additional mesophase fraction was generated at high strains from crystals damaged by severe deformation. After the formation of the crystalline phase, further deformation followed the mechanisms characteristic for the semicrystalline polymer. Interlamellar slip supported by crystallographic chain slip has been identified as the major deformation mechanism in semicrystalline PLLA. It was found that the contribution of crystallographic slip increased notably with the increase in the deformation temperature. The most probable active crystallographic slip systems were (010)[001], (100)[001] or (110)[001] slip systems operating along the chain direction. At high temperatures (Td = 115-140 °C), the α→β crystal transformation was additionally observed, leading to the formation of a small fraction of β crystals.
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Affiliation(s)
| | - Zbigniew Bartczak
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland;
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9
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Liu C, Xiao C, Xie C, Zhu Q, Chen Q, Ma W, Li W. Insulating Polymers as Additives to Bulk-Heterojunction Organic Solar Cells: The Effect of Miscibility. Chemphyschem 2021; 23:e202100725. [PMID: 34791762 DOI: 10.1002/cphc.202100725] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/17/2021] [Indexed: 11/06/2022]
Abstract
Adding insulating polymers to conjugated polymers is an efficient strategy to tailor their mechanical properties for flexible organic electronics. In this work, we selected two insulating polymers as additives for high-performance photoactive layers and investigated the mechanical and photovoltaic properties in organic solar cells (OSCs). The insulating polymers were found to reduce the electron mobilities in the photoactive layers, and hence the power conversion efficiencies were significantly decreased. More importantly, we found that the insulating polymers exhibited negative effect on the mechanical properties of the photoactive layers, with reduced Young's modulus and low crack onset strains. Further studies revealed that the insulating polymers had poor miscibility with the photoactive layers, providing large domains and more cavities in blend thin films, which act as negative effect for the tensile test. The studies indicate that rational selection of insulating polymers, especially enhancing the non-covalent interaction with the photoactive layers, will be critically important for the stretchable OSCs.
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Affiliation(s)
- Chunhui Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Chengyi Xiao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Chengcheng Xie
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Qinglian Zhu
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Qiaomei Chen
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Wei Ma
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Weiwei Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
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10
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Chen J, Schneider K, Heinrich G. In-Situ Synchrotron X-ray Study on the Structure Variation of Morphology-Identified Injection-Molded β-Nucleated iPP under Tensile Deformation. Polymers (Basel) 2021; 13:polym13213730. [PMID: 34771288 PMCID: PMC8587524 DOI: 10.3390/polym13213730] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/20/2021] [Accepted: 10/24/2021] [Indexed: 11/25/2022] Open
Abstract
The deformation behavior of semi-crystalline polymers is strongly dependent on the morphology formed during processing. In this study, in-situ synchrotron X-ray was firstly used to identify the morphological distributions of injection-molded isotactic polypropylene (iPP) with different concentrations of β-nucleating agent. It was found that under relatively high concentration of β-nucleating agent (i.e., ≥0.03 wt.%), the outer region (skin and shear region) of the iPP was dominated by mainly highly oriented α-phase as well as certain amount γ-phase, while the core region was rich in β-crystals with little if any orientation. The addition of the β-nucleating agent was beneficial for the formation of lamellae with large lamellar stacking distance in the shear layer. Then the synchrotron X-ray was applied to study the structure variation of those morphology-identified samples under tensile deformation. It was found that voids and cavities along the stretching direction existed in the deformed iPP samples and their volume increased with increasing concentration of β-nucleating agent. The increased volume of void and cavity was associated with the β to α phase transition, which mainly occurred at the core region. In addition, upon stretching crystalline fragmentation and rearrangement took place following the formation of thinner lamellae.
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Affiliation(s)
- Jianhong Chen
- Fujian Provincial Key Laboratory of Functional Materials and Applications, Xiamen University of Technology, Ligong Road 600, Xiamen 361024, China
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany;
- Correspondence: (J.C.); (K.S.)
| | - Konrad Schneider
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany;
- Correspondence: (J.C.); (K.S.)
| | - Gert Heinrich
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany;
- Institut für Textilmaschinen und Textile Hochleistungswerkstofftechnik, Technische Universität Dresden, Zellescher Weg 17, 01062 Dresden, Germany
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11
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Ding Z, Liu D, Zhao K, Han Y. Optimizing Morphology to Trade Off Charge Transport and Mechanical Properties of Stretchable Conjugated Polymer Films. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00268] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zicheng Ding
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710119, Shaanxi, China
| | - Dongle Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710119, Shaanxi, China
| | - Kui Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710119, Shaanxi, China
| | - Yanchun Han
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
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12
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Xu L, Jiang Y, Wang D, Yin B. The cavitation development of poly(4‐methyl‐1‐pentene) casting films studied by
in situ
small angle X‐ray scattering. J Appl Polym Sci 2021. [DOI: 10.1002/app.50209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Liyang Xu
- Liangjiang International College Chongqing University of Technology Chongqing China
| | - Yuanping Jiang
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, School of Chemistry, Biology and Materials Science East China University of Technology Nanchang China
| | - Dezheng Wang
- Chongqing Institute of Engineering Chongqing China
| | - Bo Yin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
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13
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Zhang D, Ding L, Yang F, Lan F, Cao Y, Xiang M. Structural evolution of β-iPP with different supermolecular structures during the simultaneous biaxial stretching process. Polym J 2020. [DOI: 10.1038/s41428-020-00430-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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14
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Zheng Y, Pan P. Crystallization of biodegradable and biobased polyesters: Polymorphism, cocrystallization, and structure-property relationship. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101291] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Ding C, Yang Y, Liu L, Wu GG, Yin B, Yang MB. Surfactant-assisted β-NA supramolecular self-assembly in mini injection molding PP composite. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Heeley EL, Billimoria K, Parsons N, Figiel Ł, Keating EM, Cafolla CT, Crabb EM, Hughes DJ. In-situ uniaxial drawing of poly-L-lactic acid (PLLA): Following the crystalline morphology development using time-resolved SAXS/WAXS. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122353] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Zhou J, Zheng Y, Shan G, Bao Y, Wang WJ, Pan P. Stretch-induced crystalline structural evolution and cavitation of poly(butylene adipate-ran-butylene terephthalate)/poly(lactic acid) immiscible blends. POLYMER 2020. [DOI: 10.1016/j.polymer.2019.122121] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Yu P, Guo XS, Bao RY, Liu ZY, Yang MB, Yang W. Photo-Driven Self-Healing of Arbitrary Nondestructive Damage in Polyethylene-Based Nanocomposites. ACS APPLIED MATERIALS & INTERFACES 2020; 12:1650-1657. [PMID: 31822066 DOI: 10.1021/acsami.9b19440] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Polymer products with precise shape recovery behavior are highly desired for practical applications owing to excellent processability and mechanical properties compared with metallic or inorganic materials. Shape memory polymers (SMPs) provide a solution for this end, but the design and scalable fabrication of photothermal controllable SMPs with accurate, rapid, and repeatable recovery behaviors are still great challenges. In this work, polyurethane/sulfonated carbon nanotube (PU/S-CNT) composite particles are introduced into a cross-linked high-density polyethylene (HDPE) as a functional dispersed phase to realize photo-driven fast shape recovery in cheap polymer composite materials. It is found that microcracks can be induced by the PU/S-CNT composite particles during deformation, generating a particular microparticle in a microcrack (MC-MP) structure. The MC-MP microstructure significantly improves the photothermal conversion efficiency, thereby accelerating the photo-driven shape self-healing of arbitrary nondestructive material damage. It is also found that proper cross-linking of the matrix, HDPE, greatly improves the recovery performance of the materials. This strategy based on the MC-MP microstructure and cross-linked matrix is also instructive for designing new SMPs using other polymer materials.
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Affiliation(s)
- Peng Yu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , Sichuan , People's Republic of China
| | - Xiao-Shuai Guo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , Sichuan , People's Republic of China
| | - Rui-Ying Bao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , Sichuan , People's Republic of China
| | - Zheng-Ying Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , Sichuan , People's Republic of China
| | - Ming-Bo Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , Sichuan , People's Republic of China
| | - Wei Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , Sichuan , People's Republic of China
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19
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Influence of Annealing and Biaxial Expansion on the Properties of Poly(l-Lactic Acid) Medical Tubing. Polymers (Basel) 2019; 11:polym11071172. [PMID: 31373323 PMCID: PMC6680782 DOI: 10.3390/polym11071172] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/04/2019] [Accepted: 07/05/2019] [Indexed: 01/30/2023] Open
Abstract
Poly-l-lactic acid (PLLA) is one of the most common bioabsorbable materials in the medical device field. However, its use in load-bearing applications is limited due to its inferior mechanical properties when compared to many of the competing metal-based permanent and bioabsorbable materials. The objective of this study was to directly compare the influence of both annealing and biaxial expansion processes to improve the material properties of PLLA. Results showed that both annealing and biaxial expansion led to an overall increase in crystallinity and that the crystallites formed during both processes were in the α’ and α forms. 2D-WAXS patterns showed that the preferred orientation of crystallites formed during annealing was parallel to the circumferential direction. While biaxial expansion resulted in orientation in both axial and circumferential directions, with relatively equal sized crystals in both directions, Da (112 Å) and Dc (97 Å). The expansion process had the most profound effect on mechanical performance, with a 65% increase in Young’s modulus, a 45% increase in maximum tensile stress and an 18-fold increase in strain at maximum load. These results indicate that biaxially expanding PLLA at a temperature above Tcc is possible, due to the high strain rates associated with stretch blow moulding.
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Xu R, Tian Z, Xie J, Lei C. The structure transformation of pre‐oriented polylactic acid film during uniaxial stretching at room temperature. POLYMER CRYSTALLIZATION 2019. [DOI: 10.1002/pcr2.10072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rui‐Jie Xu
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangdong Provincial Engineering Laboratory of Energy Storage Materials and Devices, School of Materials and EnergyGuangdong University of Technology Guangzhou People's Republic of China
| | - Zi‐Qin Tian
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangdong Provincial Engineering Laboratory of Energy Storage Materials and Devices, School of Materials and EnergyGuangdong University of Technology Guangzhou People's Republic of China
| | - Jia‐Yi Xie
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangdong Provincial Engineering Laboratory of Energy Storage Materials and Devices, School of Materials and EnergyGuangdong University of Technology Guangzhou People's Republic of China
| | - Cai‐Hong Lei
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangdong Provincial Engineering Laboratory of Energy Storage Materials and Devices, School of Materials and EnergyGuangdong University of Technology Guangzhou People's Republic of China
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Zheng Y, Zhou J, Bao Y, Shan G, Pan P. Polymorphic Crystal Transition and Lamellae Structural Evolution of Poly(p-dioxanone) Induced by Annealing and Stretching. J Phys Chem B 2019; 123:3822-3831. [DOI: 10.1021/acs.jpcb.8b12111] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ying Zheng
- State Key Laboratory of Chemical Engineering, College of Biological and Chemical Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Jian Zhou
- State Key Laboratory of Chemical Engineering, College of Biological and Chemical Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Yongzhong Bao
- State Key Laboratory of Chemical Engineering, College of Biological and Chemical Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Guorong Shan
- State Key Laboratory of Chemical Engineering, College of Biological and Chemical Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering, College of Biological and Chemical Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
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Lee B, Onbulak S, Xu Y, Topolkaraev V, McEneany R, Bates F, Hillmyer M. Investigation of Micromechanical Behavior and Voiding of Polyethylene Terephthalate/Polyethylene-stat-methyl Acrylate Blends during Tensile Deformation. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b06362] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bongjoon Lee
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Sebla Onbulak
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Yuewen Xu
- Void Technologies Inc., Neenah, Wisconsin 54956, United States
| | - Vasily Topolkaraev
- Corporate Research & Engineering, Kimberly-Clark Corporation, Neenah, Wisconsin 54957, United States
| | - Ryan McEneany
- Void Technologies Inc., Neenah, Wisconsin 54956, United States
| | - Frank Bates
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Marc Hillmyer
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
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Wu GG, Chen WB, Ding C, Xu LY, Liu ZY, Yang W, Yang MB. Pore formation mechanism of oriented β polypropylene cast films during stretching and optimization of stretching methods: In-situ SAXS and WAXD studies. POLYMER 2019. [DOI: 10.1016/j.polymer.2018.12.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Morel A, Domaschke S, Urundolil Kumaran V, Alexeev D, Sadeghpour A, Ramakrishna S, Ferguson S, Rossi R, Mazza E, Ehret A, Fortunato G. Correlating diameter, mechanical and structural properties of poly(l-lactide) fibres from needleless electrospinning. Acta Biomater 2018; 81:169-183. [PMID: 30273744 DOI: 10.1016/j.actbio.2018.09.055] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 08/16/2018] [Accepted: 09/27/2018] [Indexed: 10/28/2022]
Abstract
The development and application of nanofibres requires a thorough understanding of the mechanical properties on a single fibre level including respective modelling tools for precise fibre analysis. This work presents a mechanical and morphological study of poly-l-lactide nanofibres developed by needleless electrospinning. Atomic force microscopy (AFM) and micromechanical testing (MMT) were used to characterise the mechanical response of the fibres within a diameter range of 200-1400 nm. Young's moduli E determined by means of both methods are in sound agreement and show a strong increase for thinner fibres below a critical diameter of 800 nm. Similar increasing trends for yield stress and hardening modulus were measured by MMT. Finite element analyses show that the common practice of modelling three-point bending tests with either double supported or double clamped beams is prone to significant bias in the determined elastic properties, and that the latter is a good approximation only for small diameters. Therefore, an analytical formula based on intermediate boundary conditions is proposed that is valid for the whole tested range of fibre diameters, providing a consistently low error in axial Young's modulus below 10%. The analysis of fibre morphology by differential scanning calorimetry and 2D wide-angle X-ray scattering revealed increasing polymer chains alignment in the amorphous phase and higher crystallinity of fibres for decreasing diameter. The combination of these observations with the mechanical characterisation suggests a linear relationship between Young's modulus and both crystallinity and molecular orientation in the amorphous phase. STATEMENT OF SIGNIFICANCE: Fibrous membranes have rapidly growing use in various applications, each of which comes with specific property requirements. However, the development and production of nanofibre membranes with dedicated mechanical properties is challenging, in particular with techniques suitable for industrial scales such as needleless electrospinning. It is therefore a key step to understand the mechanical and structural characteristics of single nanofibres developed in this process, and to this end, the present work presents changes of internal fibre structure and mechanical properties with diameter, based on dedicated models. Special attention was given to the commonly used models for analyzing Young's modulus of single nanofibers in three-point bending tests, which are shown to be prone to large errors, and an improved robust approach is proposed.
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Wu GG, Xu LY, Chen WB, Ding C, Liu ZY, Yang W, Yang MB. Oriented polypropylene cast films consisted of β-transcrystals induced by the nucleating agent self-assembly and its homogeneous membranes with high porosity. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.07.066] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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26
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Chen R, Lu Y, Jiang Z, Men Y. Cavitation in Poly(4-methyl-1-pentene) during Tensile Deformation. J Phys Chem B 2018; 122:4159-4168. [PMID: 29547292 DOI: 10.1021/acs.jpcb.8b00060] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The poly(4-methyl-1-pentene) sample was used to investigate the cavitation-induced stress-whitening phenomenon during stretching at different temperatures via the ultrasmall-angle X-ray scattering technique. Two modes of cavitation were found that mode I cavitation activated around yield point followed by mode II cavitation generated in highly oriented state. The critical strain for initiating the mode II cavitation increases with the increase of the stretching temperature, whereas the critical stress grew steadily in the lower temperature regime (30-60 °C) and reached a plateau at 70 °C. The appearance of mode II cavitation at large strains was independent of the mode I cavitation. The mode I cavitation was attributed to the competitive process between the formation of cavities and shearing yield of lamellae, whereas the mode II cavitation was proven to be related to the failure of the whole highly oriented entangled amorphous network because of the breaking of interfibrillar load-bearing tie molecules. Size distribution of cavities has been successfully calculated using a model fitting procedure. The results showed that the quantity of cavities increased heavily while the size was kept nearly constant during the propagation of the mode II cavitation.
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Affiliation(s)
- Ran Chen
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Renmin Street 5625 , 130022 Changchun , P. R. China
| | - Ying Lu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Renmin Street 5625 , 130022 Changchun , P. R. China
| | - Zhiyong Jiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Renmin Street 5625 , 130022 Changchun , P. R. China
| | - Yongfeng Men
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Renmin Street 5625 , 130022 Changchun , P. R. China
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Billimoria K, Heeley EL, Parsons N, Figiel Ł. An investigation into the crystalline morphology transitions in poly-L-lactic acid (PLLA) under uniaxial deformation in the quasi-solid-state regime. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.01.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Tabatabaei A, Park CB. In-situ visualization of PLA crystallization and crystal effects on foaming in extrusion. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.09.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Initiation of cavitation upon drawing of pre-oriented polypropylene film: In situ SAXS and WAXD studies. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.09.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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The structure evolution of polyamide 1212 after stretched at different temperatures and its correlation with mechanical properties. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Structure evolution of polyamide (11)’s crystalline phase under uniaxial stretching and increasing temperature. JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1244-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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32
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Løvdal ALV, Andreasen JW, Mikkelsen LP, Agersted K, Almdal K. Mechanical properties of biaxially strained poly(l
-lactide) tubes: Strain rate and temperature dependence. J Appl Polym Sci 2017. [DOI: 10.1002/app.45192] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alexandra Liv Vest Løvdal
- Department of Micro- and Nanotechnology; Technical University of Denmark; Kongens Lyngby 2800 Denmark
| | - Jens W. Andreasen
- Department of Energy Conversion and Storage; Technical University of Denmark; Roskilde 4000
| | - Lars P. Mikkelsen
- Department of Wind Energy; Technical University of Denmark; Roskilde 4000
| | - Karsten Agersted
- Department of Energy Conversion and Storage; Technical University of Denmark; Roskilde 4000
| | - Kristoffer Almdal
- Department of Micro- and Nanotechnology; Technical University of Denmark; Kongens Lyngby 2800 Denmark
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33
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Dusunceli N, Drozdov AD, Theilgaard N. Influence of temperature on viscoelastic-viscoplastic behavior of poly(lactic acid) under loading-unloading. POLYM ENG SCI 2017. [DOI: 10.1002/pen.24404] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Necmi Dusunceli
- Department of Mechanical Engineering; Aksaray University; Aksaray 68100 Turkey
| | - Aleksey D. Drozdov
- Department of Mechanical and Manufacturing Engineering; Aalborg University; Aalborg 9220 Denmark
| | - Naseem Theilgaard
- Center for Plastics Technology, Danish Technological Institute; Taastrup 2630 Denmark
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Domenek S, Fernandes-Nassar S, Ducruet V. Rheology, Mechanical Properties, and Barrier Properties of Poly(lactic acid). SYNTHESIS, STRUCTURE AND PROPERTIES OF POLY(LACTIC ACID) 2017. [DOI: 10.1007/12_2016_17] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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35
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Strain and temperature dependence of deformation mechanism of lamellar stacks in HDPE and its guidance on microporous membrane preparation. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.10.043] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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36
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Løvdal A, Andreasen JW, Mikkelsen LP, Agersted K, Almdal K. Characterization of biaxial strain of poly(l
-lactide) tubes. POLYM INT 2015. [DOI: 10.1002/pi.5040] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Alexandra Løvdal
- Technical University of Denmark; Department of Microtechnology and Nanotechnology; Ørsteds Plads, 345E 2800 Kongens Lyngby Denmark
| | - Jens W Andreasen
- Technical University of Denmark; Department of Energy Conversion and Storage; Frederiksborgvej 399, 4000 Roskilde Denmark
| | - Lars P Mikkelsen
- Technical University of Denmark; Department of Wind Energy; Frederiksborgvej 399, 4000 Roskilde Denmark
| | - Karsten Agersted
- Technical University of Denmark; Department of Energy Conversion and Storage; Frederiksborgvej 399, 4000 Roskilde Denmark
| | - Kristoffer Almdal
- Technical University of Denmark; Department of Microtechnology and Nanotechnology; Ørsteds Plads, 345E 2800 Kongens Lyngby Denmark
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37
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Zhang X, Meng L, Li G, Liang N, Zhang J, Zhu Z, Wang R. Effect of nucleating agents on the crystallization behavior and heat resistance of poly(l-lactide). J Appl Polym Sci 2015. [DOI: 10.1002/app.42999] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xiuqin Zhang
- School of Materials Science & Engineering; Beijing Institute of Fashion Technology; Beijing 100029 China
| | - Lingyan Meng
- School of Materials Science & Engineering; Beijing Institute of Fashion Technology; Beijing 100029 China
| | - Gen Li
- School of Materials Science & Engineering; Beijing Institute of Fashion Technology; Beijing 100029 China
| | - Ningning Liang
- School of Materials Science & Engineering; Beijing Institute of Fashion Technology; Beijing 100029 China
| | - Jing Zhang
- School of Materials Science & Engineering; Beijing Institute of Fashion Technology; Beijing 100029 China
| | - Zhiguo Zhu
- School of Materials Science & Engineering; Beijing Institute of Fashion Technology; Beijing 100029 China
| | - Rui Wang
- School of Materials Science & Engineering; Beijing Institute of Fashion Technology; Beijing 100029 China
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38
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Chen Z, Zhang S, Wu F, Yang W, Liu Z, Yang M. Motion mode of poly(lactic acid) chains in film during strain-induced crystallization. J Appl Polym Sci 2015. [DOI: 10.1002/app.42969] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhefeng Chen
- College of Polymer Science and Engineering; Sichuan University; Chengdu 610065 People's Republic of China
| | - Shuyang Zhang
- College of Polymer Science and Engineering; Sichuan University; Chengdu 610065 People's Republic of China
| | - Feng Wu
- College of Polymer Science and Engineering; Sichuan University; Chengdu 610065 People's Republic of China
| | - Wei Yang
- College of Polymer Science and Engineering; Sichuan University; Chengdu 610065 People's Republic of China
| | - Zhengying Liu
- College of Polymer Science and Engineering; Sichuan University; Chengdu 610065 People's Republic of China
| | - Mingbo Yang
- College of Polymer Science and Engineering; Sichuan University; Chengdu 610065 People's Republic of China
- State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu 610065 People's Republic of China
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39
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Xiong Z, Zhang X, Wang R, de Vos S, Wang R, Joziasse CA, Wang D. Favorable formation of stereocomplex crystals in poly( l -lactide)/poly( d -lactide) blends by selective nucleation. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.08.056] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Sun B, Liu Y, Zhang B, Bian X, Li G, Chen X. Enhanced toughness and strength of poly (d-lactide) by stereocomplexation with 5-arm poly (l-lactide). J Appl Polym Sci 2015. [DOI: 10.1002/app.42857] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bin Sun
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
- Zhejiang Hisun Biomaterials Co., Ltd; Taizhou Zhejiang 318000 China
- University of Chinese Academy of Sciences; Beijing 100039 China
| | - Yanlong Liu
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
- Zhejiang Hisun Biomaterials Co., Ltd; Taizhou Zhejiang 318000 China
| | - Bao Zhang
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
| | - Xinchao Bian
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
- Zhejiang Hisun Biomaterials Co., Ltd; Taizhou Zhejiang 318000 China
| | - Gao Li
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
- Zhejiang Hisun Biomaterials Co., Ltd; Taizhou Zhejiang 318000 China
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Xiong B, Lame O, Chenal JM, Rochas C, Seguela R, Vigier G. Temperature-Microstructure Mapping of the Initiation of the Plastic Deformation Processes in Polyethylene via In Situ WAXS and SAXS. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01258] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bijin Xiong
- MATEIS, UMR 5510 CNRS - INSA de Lyon, Batiment, Blaise Pascal, Campus LyonTech La Doua, 69621 Villeurbanne, France
| | - O. Lame
- MATEIS, UMR 5510 CNRS - INSA de Lyon, Batiment, Blaise Pascal, Campus LyonTech La Doua, 69621 Villeurbanne, France
| | - J.-M. Chenal
- MATEIS, UMR 5510 CNRS - INSA de Lyon, Batiment, Blaise Pascal, Campus LyonTech La Doua, 69621 Villeurbanne, France
| | - C. Rochas
- CERMAV, UPR 5301 CNRS, 38041 Grenoble, France
| | - R. Seguela
- MATEIS, UMR 5510 CNRS - INSA de Lyon, Batiment, Blaise Pascal, Campus LyonTech La Doua, 69621 Villeurbanne, France
| | - G. Vigier
- MATEIS, UMR 5510 CNRS - INSA de Lyon, Batiment, Blaise Pascal, Campus LyonTech La Doua, 69621 Villeurbanne, France
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42
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Zhou C, Li H, Zhang Y, Xue F, Huang S, Wen H, Li J, de Claville Christiansen J, Yu D, Wu Z, Jiang S. Deformation and structure evolution of glassy poly(lactic acid) below the glass transition temperature. CrystEngComm 2015. [DOI: 10.1039/c5ce00669d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mesocrystal was found to form from the mesophase of glassy PLA stretched below the glass transition temperature.
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Affiliation(s)
- Chengbo Zhou
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072, PR China
| | - Hongfei Li
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, PR China
| | - Yao Zhang
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072, PR China
| | - Feifei Xue
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072, PR China
| | - Shaoyong Huang
- Key Laboratory of Polymer Eco-materials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, PR China
| | - Huiying Wen
- College of Engineering and Technology
- Northeast Forestry University
- Harbin 150040, PR China
| | - Jingqing Li
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072, PR China
| | | | - Donghong Yu
- Department of Chemistry and Biosciences
- Aalborg University
- Aalborg, Denmark
| | - Zhonghua Wu
- Beijing Synchrotron Radiation Laboratory
- Institute of High Energy Physics
- Chinese Academy of Science
- Beijing 100039, PR China
| | - Shichun Jiang
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072, PR China
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44
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Liu G, Zhang X, Wang D. Tailoring crystallization: towards high-performance poly(lactic acid). ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:6905-6911. [PMID: 24577731 DOI: 10.1002/adma.201305413] [Citation(s) in RCA: 145] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 12/15/2013] [Indexed: 06/03/2023]
Abstract
Poly(lactic acid) (PLA) is one of the most promising alternatives for petrochemical-based plastics. Crystallization mediation provides the simplest and most practical approach for enhancing the properties of PLA. Here, recent advances in understanding the relationship between crystalline structure and properties of PLA are summarized. Methods for manipulating crystallization towards high-performance PLA materials are introduced.
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Affiliation(s)
- Guoming Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
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45
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Song YY, Ye HM, Xu J, Hou K, Zhou Q, Lu GW. Stretch-induced bidirectional polymorphic transformation of crystals in poly(butylene adipate). POLYMER 2014. [DOI: 10.1016/j.polymer.2014.05.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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46
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Wang Y, Jiang Z, Fu L, Lu Y, Men Y. Lamellar thickness and stretching temperature dependency of cavitation in semicrystalline polymers. PLoS One 2014; 9:e97234. [PMID: 24820772 PMCID: PMC4018252 DOI: 10.1371/journal.pone.0097234] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 04/16/2014] [Indexed: 11/19/2022] Open
Abstract
Polybutene-1 (PB-1), a typical semicrystalline polymer, in its stable form I shows a peculiar temperature dependent strain-whitening behavior when being stretched at temperatures in between room temperature and melting temperature of the crystallites where the extent of strain-whitening weakens with the increasing of stretching temperature reaching a minima value followed by an increase at higher stretching temperatures. Correspondingly, a stronger strain-hardening phenomenon was observed at higher temperatures. The strain-whitening phenomenon in semicrystalline polymers has its origin of cavitation process during stretching. In this work, the effect of crystalline lamellar thickness and stretching temperature on the cavitation process in PB-1 has been investigated by means of combined synchrotron ultrasmall-angle and wide-angle X-ray scattering techniques. Three modes of cavitation during the stretching process can be identified, namely "no cavitation" for the quenched sample with the thinnest lamellae where only shear yielding occurred, "cavitation with reorientation" for the samples stretched at lower temperatures and samples with thicker lamellae, and "cavitation without reorientation" for samples with thinner lamellae stretched at higher temperatures. The mode "cavitation with reorientation" occurs before yield point where the plate-like cavities start to be generated within the lamellar stacks with normal perpendicular to the stretching direction due to the blocky substructure of the crystalline lamellae and reorient gradually to the stretching direction after strain-hardening. The mode of "cavitation without reorientation" appears after yield point where ellipsoidal shaped cavities are generated in those lamellae stacks with normal parallel to the stretching direction followed by an improvement of their orientation at larger strains. X-ray diffraction results reveal a much improved crystalline orientation for samples with thinner lamellae stretched at higher temperatures. The observed behavior of microscopic structural evolution in PB-1 stretched at different temperatures explains above mentioned changes in macroscopic strain-whitening phenomenon with increasing in stretching temperature and stress-strain curves.
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Affiliation(s)
- Yaotao Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Changchun, People's Republic of China
| | - Zhiyong Jiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Changchun, People's Republic of China
| | - Lianlian Fu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Changchun, People's Republic of China
| | - Ying Lu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Changchun, People's Republic of China
| | - Yongfeng Men
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Changchun, People's Republic of China
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Xiong B, Lame O, Chenal J, Rochas C, Seguela R, Vigier G. In-situ SAXS study and modeling of the cavitation/crystal-shear competition in semi-crystalline polymers: Influence of temperature and microstructure in polyethylene. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.07.055] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Insight into the annealing peak and microstructural changes of poly(l-lactic acid) by annealing at elevated temperatures. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.04.027] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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